Make an Offer

PSB CSIW SUB28 Dual 8 Inch In-wall Subwoofer

PSB CSIW SUB28 Dual 8 Inch In-wall Subwoofer

$1,899.00
$

Offer Submitted!

Thank you for your offer! We've received your submission and will review it shortly. We'll get back to you within 24 hours.
PSB CSIW SUB28 Dual 8 Inch In-wall Subwoofer
PSB CSIW SUB28 Dual 8 Inch In-wall Subwoofer

PSB

Country of origin: Canada

PSB CSIW SUB28 Dual 8 Inch In-wall Subwoofer
SKU: PS-BCSIWSUB28
$1,899.00

Includes GST. 🚚 Free shipping on orders over $100 Australia wide at checkout.


Its dual 8-inch drivers deliver deep, controlled low frequencies while staying completely concealed within your wall. Perfect for custom home theaters, it offers impactful, distortion-free bass that blends seamlessly into any premium architectural audio system.

In stock
Colour:Black
Quantity:
We accept:
American Express Apple Pay Google Pay Mastercard PayPal Shop Pay Union Pay Visa Zip

Every order ships free to any address in Australia via fully tracked, insured delivery. You’ll receive a tracking link once your order is dispatched so you can follow it the whole way. Estimated delivery is 1-4 business days.

We handle your warranty so you don’t have to. If something isn’t right, simply get in touch and we will coordinate directly with the Australian importer on your behalf. Find out more. click here to lodge a warranty claim.

Whether you’re browsing or already unboxing, Geoff is your friendly hi-fi guide available 7 days a week. From choosing the right system to setting up your new purchase, expert advice is always within reach. Contact Geoff today.

Price is important, but building the right system synergy is equally so. If you’ve found a better price on one of our products or listings, simply get in touch with Geoff. Don’t let price stand in the way of working with HeyNow Hi-Fi to find the right result for your system.
Description

CSIW SUB28 – Dual 8″ In-Wall Subwoofer

Maximum impact, minimal footprint

The CSIW SUB28 by PSB is an in-wall subwoofer that pairs with the CS 500W to redefine bass delivery in your home theatre. Dual 8” high-performance drivers and a sealed cabinet design produce deep, detailed sound without occupying floor space. Experience cinematic sound with zero footprint.

Designed for detailed performance

Achieve audiophile-grade sound with the CSIW SUB28. Boasting dual 8" drivers with polypropylene cones and rubber surrounds, it provides precise and powerful bass performance, making it an ideal addition to any PSB audio system. With its sealed cabinet design, the CSIW SUB28 in-wall subwoofer provides a controlled bass response, tighter sound, and minimal unwanted resonance and distortion. Feel the brute force and raw power behind your sound.

A match made in heaven

Discover audio excellence with the CSIW SUB28 in-wall subwoofer, designed for perfect synergy with the CS 500W subwoofer amplifier. This dynamic duo unlocks your PSB audio system's full potential, making the best use of the Sub28’s dual drivers to create low-frequency sounds with authority and accuracy. Delivering a symphony of sound that harmonizes like alto and soprano notes, together, they create an unparalleled listening experience. Experience the power of perfect partnership.

Versatile installation options

Easy to install and easy to deploy, this subwoofer is simple to add to your audio system. Whether building a new home theatre or upgrading an existing one, the CSIW SUB28 offers flexibility during installation. Its heavy-duty nylon dog ears and magnetic perforation grille ensure a secure fit and a setup built to last. Flexible and versatile, it can be used in new construction or retrofit applications.

The best of both worlds

Many subwoofers take up considerable space, making them challenging to incorporate seamlessly into your room's layout. The CSIW SUB28, on the other hand, offers an ingenious solution by delivering high-quality bass performance without occupying any valuable floor space, giving you both the sonic impact you desire and the flexibility to maintain an uncluttered living environment. It truly is the best of both worlds. 

Tech Specs

Sound Pressure Level

Maximum @ 100Hz TBD

Sensitivity

Anechoic Chamber 87dB
Listening Room

89dB

Impedance

Nominal 4 Ohms

Acoustic Design

Woofer (Nominal)

2 x 8" (100mm)

Carbon Fibre Cone

Rubber Surround

Steel Basket

Construction

Cabinet Metal
Grille Face Metal

Dimensions / Weights / Finish

Dimensions

Net W - 13 1/2"* (343mm)

Net H - 25 3/8” * (625mm)

Net D - 3 3/4” * (95mm)
Shipping Dimensions

Net W - 18 1/2"* (470mm)

Net H - 31 4/5” * (808mm)

Net D - 12 1/5” * (310mm)
Volume 0.3 ft³
Weight

Net - 26lb (12kg)

Shipping - 32.6 lb (14.8 kg)
Finish White Paintable Grille
Notes

* Non-metric measurements are approximate.

All specifications are subject to change without notice.
Customer Reviews

User Reviews

Warranty Information
warranty shield 5 Years Warranty

We care about your experience with HeyNow Hi-Fi, and we’re here to make the warranty process as smooth as possible.

Your warranty is handled directly by the Australian importer. By submitting this form, we’ll coordinate the process for you and keep you updated every step of the way. Important: Shipping fees are not included as part of your warranty coverage.

If your HeyNow Hi-Fi purchase isn’t working as it should, click here to lodge a warranty claim.

Should you have any questions, feel free to contact us https://www.heynowhifi.com.au//pages/contact

Why Choose PSB

PSB Speakers is a Canadian loudspeaker manufacturer founded by legendary designer Paul Barton, whose work has long focused on combining scientific acoustic research with natural and highly approachable musical performance. Developed alongside extensive listening research conducted through Canada’s National Research Council, PSB products are engineered around the idea that loudspeakers should reproduce music with tonal accuracy, balance, and long-term listenability across real-world listening environments.

At HeyNow Hi-Fi, PSB occupies a particularly interesting space within the market because the range combines excellent engineering, practical usability, and strong value while remaining less commonly encountered than many mainstream loudspeaker brands. The result is a lineup that often surprises customers with just how refined, flexible, and musically satisfying the products are at their respective price points.

Signature Design and Sound

PSB products are known for their balanced and easy-to-live-with presentation. Rather than sounding exaggerated or overly analytical, the speakers tend to focus on tonal coherence, natural vocals, controlled bass performance, and broad compatibility across different amplifiers, rooms, and listening styles.

One of the standout areas within the range is the PSB Alpha iQ active streaming speaker system. Incorporating integrated amplification together with the excellent BluOS streaming platform, the Alpha iQ delivers a highly modern and remarkably complete Hi-Fi solution with minimal system complexity. For customers wanting genuine stereo performance without the need for multiple separate components, the Alpha iQ has become one of the most compelling compact streaming systems currently available.

PSB’s AM Series active speakers also offer a highly practical and musically engaging approach to modern desktop and compact Hi-Fi listening. Combining active amplification with strong tonal balance and excellent usability, they work beautifully within home offices, smaller rooms, and lifestyle-oriented listening spaces while still maintaining genuine stereo credibility.

The range also extends into architectural speakers, including in-wall and in-ceiling models designed for discreet distributed audio and home theatre integration, together with heritage-inspired passive speakers such as the Passif 50, which offers a modern interpretation of classic monitor-style loudspeaker design.

PSB Product Range

The PSB range available through HeyNow Hi-Fi includes active streaming loudspeakers, powered desktop speakers, passive loudspeakers, architectural audio solutions, and wireless headphone products designed for both home and travel use.

The Alpha iQ and AM Series in particular represent excellent opportunities for customers seeking high-quality sound with minimal complexity, while the Passif 50 appeals strongly to listeners who appreciate classic loudspeaker proportions and a more traditional stereo presentation.

PSB’s wireless noise-cancelling headphones also remain highly practical for travel, particularly due to their use of replaceable AA battery operation rather than fixed internal rechargeable batteries. For many travellers and long-term owners, this offers a level of convenience and longevity that is becoming increasingly rare within modern portable audio products.

At HeyNow Hi-Fi, Geoff and his experienced system setup team provide assistance with streaming integration, speaker matching, architectural audio planning, and complete system optimisation to ensure PSB products perform at their full potential within each customer’s listening environment.

Explore the PSB range:

Active Speakers

Bookshelf Speakers

Floorstanding Speakers

Soundbars

Subwoofers

In Ceiling Speakers

Headphones/Earphones

Centre Speakers

Speaker Stands

Home Theatre Speakers

Outdoor Speakers

Bookshelf/Standmount Speakers

Explore PSB

Featured Categories

AMPLIFIERS

Speakers

Turntables

CABLES

WHY CHOOSE HEYNOW HI-FI?

At HeyNow Hi-Fi, it's not just about the gear - it's about how it all comes together. With over 30 years of experience, Geoff provides personalised, expert advice to help you build a system that suits your music, your space, and listening style.

Whether you're starting from scratch, refining your set up, or upgrading your gear, Geoff is always happy to have a chat. Call or book a private consultation directly with Geoff today.

GET IN TOUCH